"Mainline Block Target Signal" with lights change from green to red when trains move through its block.
- FEATURES:
- Die-cast metal construction
- Lights change from green to red when trains move through its block
- Lights automatically reset to green when block clears
- 153C Contactor included
- Gauge: Traditional O Gauge
- Brand: Lionel
- Dimensions: 4 3/4" x 1 3/4" x 1"
- Most Recent Catalog: Lionel 2008 Train Catalog Volume 2